INDEX 



Academic freedom, 487 

 Acute rheumatism, 446 

 Adaptation, behavioral, 120-125 

 Adenin (adrenalin), 227, 453 

 Adjustment to infectious disease, 



406-427 

 Adolescence, 244 

 Adrenal gland, 227, 453 

 Adrenalin, see adenin 

 Age, and fertility, 542 



in different populations, 522-524 

 Air movement, physiological effects 



of, 314 

 Allergy, 417 

 American races, 174 

 Anaphylaxis, 417 

 Andromeda, 10 

 Anemia, 449 



in industrial workers, 450 



pernicious, 344 

 Antibodies, 415 

 Antigens, 416, 419 

 Antisocial behavior, see crime 

 Apes, anthropoid, ^^ 

 Associations, contrasted with socie- 

 ties, 142 

 Asteroids, 1 1 

 Astronomy, influence on pure sciences, 



461 

 Atmosphere, 5 



influence on life in cities, 359-366 

 Atmospheric movement, 269-301 

 Atmospheric pressure, 9 

 Attractions, spontaneous in relation 



to marriage, 282 

 Australians, 170 

 Aversions, spontaneous in relation to 



marriage, 282 



Bacteria, classification of, 408 



immunity to, 411 



invasion by, 409, 412 



toxins of, 410 

 Bacteriology, preventive, 455 

 Beaumont, experiments by, 331 

 Behavior, antisocial, see crime 

 Behavioral adaptations, 120-125 



summary, 125 



Biology, influence on education, 474 



of human populations, 515-552 

 Birth-rate, 529-533 



and occupation, 540-551 



and promiscuity, 278-280 



influenced by war, 533 

 Black races, characteristics of, 167- 



170, 173, 175 

 Bleeders, 510 

 Bleeding, effect of, 229 

 Blind trial, 121 



Blood, as an integrating mechanism, 

 242 — 244 



circulation, 221-225 



constancy of neutrality, 240-242 



constancy of sugar in, 225-227 



constancy of temperature, 229-232 



constancy of water in, 227-229 



examination of, 433 



nature of, 220 



oxygen supply in, 232-239 

 Blood plasma, inorganic composition 



of, 48-51 

 Blood vessels, diseases of, 448 

 Blood-forming organs, diseases of, 449 

 Blood-relationship test, 56, 176 

 Bone, "invention of," 63 

 Botulism, 347 

 Brain, and personality, 118 



development, 106-108 



evolution of, 91-114 



human, 256-263 



human compared with frog, 98-101 



inheritance of disease of, 506-508 



sexual diff^erences, 94 



weight of, 91-95 

 Breeding, principles of good, 567-574 



Caenozoic, ^^ 



Calcium, in sea water, 48 



Cancer, 192 



inheritance of, 503-505 

 see also malignant disease 



CapiHaries, 221, 237 



Carbon dioxide, 238 



Cell division, 199-201 



Cell membrane, 192 



Cells, as laboratories, 422 



605 



